Answer this question truthfully
### Question: What causes Hypotension?
### Response: Blood pressure that is borderline low for one person may be normal for another. Most normal blood pressures fall in the range of 90/60 millimeters of mercury (mm Hg) to 130/80 mm Hg. But a significant drop, even as little as 20 mm Hg, can cause problems for some people.
There are three main types of hypotension: Orthostatic hypotension, including postprandial orthostatic hypotension Neurally mediated hypotension (NMH) Severe hypotension brought on by a sudden loss of blood (shock), infection, or severe allergic reaction
Orthostatic hypotension is brought on by a sudden change in body position, most often when shifting from lying down to standing. This type of hypotension usually lasts only a few seconds or minutes. If this type of hypotension occurs after eating, it is called postprandial orthostatic hypotension. This form most commonly affects older adults, those with high blood pressure, and persons with Parkinson's disease. NMH most often affects young adults and children. It occurs when a person has been standing for a long time. Children usually outgrow this type of hypotension. Low blood pressure is commonly caused by drugs such as: Alcohol Anti-anxiety medications Certain antidepressants Diuretics Heart medicines, including those used to treat high blood pressure and coronary heart disease Medications used for surgery Painkillers Other causes of low blood pressure include: Advanced diabetes Anaphylaxis (a life-threatening allergic response) Changes in heart rhythm (arrhythmias) Dehydration Fainting